TY - JOUR
AU - Roberts C.
AU - Henderson-Smart D.
AU - Algert C.
AU - Morris J.
BT - International Journal of Gynecology & Obstetrics
LA - eng
LB - epidemiologyjournal
PY - 2002
SP - 213
EP - 9
T2 - International Journal of Gynecology & Obstetrics
TI - Trends in twin births in NSW, Australia, 1990-1999
VL - 78
ER -